serial killer vs disparagement

serial killer and disparagement both are nouns.

Word	Noun	Adjective	Verb	Adverb
serial killer	Yes	No	No	No
disparagement	Yes	No	No	No

serial killer (noun)	disparagement (noun)
someone who murders more than three victims one at a time in a relatively short interval	the act of speaking contemptuously of
	a communication that belittles somebody or something